Die stock



NOV. 8, 1938. K A, KUHN 2,135,671

I DIE STOCK Filed June 21, 1937 INVENTOR KarlA-KzL/m ATTORNEYS Patented Nov. 8, 1938 UNITED STATES PATENT OFFICE DIE STOCK Karl A. Kuhn, Greenfield, Mass., assignor to Greenfield Tap and Die Corporation, Greenfield, Mass., a corporation of Massachusetts Application June 21, 1937, Serial No. 149,426

2 Claims. (01. 10-127) This invention relates to improvements in die tween the body l and the lower edge of the cap stocks and particularly to a stock with an adapron 22. justable work guide. In use, a die l3 of the desired size is placed in The general purpose of the invention is to prothe socket l2 and held in position by set screw vide a stock of this type that is simple, strong, 14. Guide screws 23 are adjusted to permit cap 5 readily manufactured and convenient to use. 2| to rotate on hub 15, cam slots 20 being con- The preferred form is adapted for production toured-to move the work guide jaws l'l symby automatic machines and does not require the metrically in slot l6 relative to the axis of die l3, use of castings. the guide faces l8 being parallel to such axis, Other objects and advantages will appear from assuring accurate registry of the work with the 10 the following description taken in connection die. When the work is inserted between the jaws 10 with the accompanying drawing in which, I! and cap 2| is rotated to move jaws l'l into Figure 1 is a plan View of the work guide face engagement with opposite sides of the work and of the stock; center it accurately relative to the die, screws 23 Figure 2 is a similar View of the die face of the may be tightened to maintain jaws I! in position stock on a smaller scale; and assure the formation of a true, accurate 15 Figure 3 is a section on line 3-3 of Figure 1; thread on the work. Figure 4 is a section on line 44 of Figure 1; While various designs and arrangements are and possible within the scope of the invention as de- Figure 5 is a perspective assembly view of the fined in the claims, the preferred embodiment stock body and associated parts. has been illustrated to scale to indicate desirable 20 In the preferred form the stock comprises a prop and relationships b w p body I!) having bar handles I I mounted on oppo- I claim:

site sides thereof. The body In has a smoothly A di Stock comprising a body handles curved longitudinal taper and is adapted to be m unted o the b a die Socket in one Side of formed conveniently by turning, grinding and the body, an integral work guide hub on the 25 the like on automatic machines or by other Opposite side of the body, said body, socket and methods of production without requiring the hub having a circular peripheral contour transuse of castings, thereby eliminating the waste inverse to the body axis suitable folpllbdlcl'iifn by cident to occasional casting defects and perturning, the hub comprising soli an s aving mitting the employment of steels having the dearcuate peripheral faces, transverse guide chan- 3O sired characteristics. nels, a central bore and continuouskflatgurfaces The body II! is provided at one side with a circonnecting said faces and bore; wor gui e memcular die socket I2 adapted to receive a die I3 of hers mounted in the channels, a cap rotatatlsallly any usual type held in place by set screw l4. On mounted on said surfaces, an cam means on e the opposite side from socket l2 the body in has p p iv ly gi th w rk ui e me 35 a cylindrical work guide hub l5 provided with a berstransverse guide slot IS in which the work guide A die Stock comprising a y, handles jaws I! are slidably mounted. Guide slot l6 exmounted o the body, a die socket in one side tends across the work opening 21 in body In to of F and Work gmdmg mean? on t form guideways for jaws I1 symmetrical with the 39 ig of the g g gz zigg 1 3321 2? 40 axis of a die in socket l2 gm sways wor 1 in the guideways, arcuate walls connecting the J are provlded limeliends wlth ends of the guideways, a rotatable cap having sultable faces for engaging opposite sides of the 1 th t 11 um work, such as the right angled guide faces I8. an ap-ron (fer ymg e aiacua' e Wa 4 Each uid n h t '9 ferentlal guide slots in said walls extendmg to e Jaw S ud on Its Outer the guideways, guide members carried by the gitudinal face extending through a cam slot 20 apron extending into Said Slots between the in a cam cap 2| rotatably mount on 1111b 'guideways, and interengaging means on the guide In t f m Illustrated t apron 22 of the cap members and cap for shifting the guide members 2| 1s slidably fitted over the outer face of hub l5 radially upon rotation of the cap and for limit- 50 f d 1S l i fq fi b i Z W 23 fi i ing such rotation to retain the guide members in gui e s o s 1n u spring was er said slots. provided with ofisets 26 may be positioned be- KARL A. KUHN. 

